The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2021
Filed:
Jan. 19, 2016
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/96 (2006.01); H01M 4/88 (2006.01); D04H 1/587 (2012.01); D04H 1/4242 (2012.01); D03D 15/00 (2006.01); D03D 13/00 (2006.01); D03D 1/00 (2006.01); H01M 8/10 (2016.01); D01F 9/22 (2006.01); C01B 32/05 (2017.01);
U.S. Cl.
CPC ...
H01M 4/96 (2013.01); C01B 32/05 (2017.08); D01F 9/22 (2013.01); D03D 1/00 (2013.01); D03D 13/008 (2013.01); D03D 15/00 (2013.01); D04H 1/4242 (2013.01); D04H 1/587 (2013.01); H01M 4/88 (2013.01); H01M 8/10 (2013.01); Y02E 60/50 (2013.01); Y02P 70/50 (2015.11); Y10T 428/26 (2015.01);
Abstract
A precursor fiber sheet includes short carbon fibers having an average length of 3 to 10 mm, natural pulp having an ash content of 0.15 mass % or less, and a heat-carbonizable resin, and a porous carbon sheet is obtained by carbonizing the precursor fiber sheet. This enhances gas diffusibility and water removal properties of the porous carbon sheet and has high mechanical strength and few appearance defects even when the bulk density of the porous carbon sheet is lowered.